tailodds FORECAST
Connection · two tickets · schedule Jun 6 – Jul 31, 2026 · records Aug 2025 – Jul 2026

St Louis → Seattle via Las Vegas: arrives on time 89%

  1. 06:00 STL → 07:25 LAS
    WN 3934 · Southwest · 3h 25m · 88% on time, 0.0% cancelled
  2. 3h 34m layover in Las Vegas (LAS) · 90 min minimum on separate tickets
  3. 10:59 LAS → 13:51 SEA
    DL 2922 · Delta · 2h 52m · 92% on time, 2.8% cancelled

Total trip 9h 51m, scheduled departure to arrival (Seattle is 2 h behind St Louis). Times are local. Both flew on 47 of the last 56 days.

Makes the connection100%The first flight arrived more than 124 minutes late on 0% of the days it flew: too late for the 90-minute minimum connection on a 3h 34m layover.
Arrives on time89%First flight not cancelled (0.0% are) × connection made (100%) × second flight not cancelled (2.8% are) and within 15 minutes (92%).
Total trip9h 51mSTL 06:00 to SEA 13:51, layover included

Not yet counted: the second flight also leaving late (which helps), gate-to-gate distance at the hub, and rebooking after a missed connection.